Hair clipper machine



Aug. 26, 1952 m s m. 2,

H. P. BERGEN HAIR CLIPPER MACHINE 3 Sheets-Sheet 1 Filed Aug. 7, 1947 INVENTORTI H0725 Bergen,

AITCI RN EYB Aug. 26, 19532 H. P.BERGEN HAIR CLIPPER MACHINE 3 Sheets-Sheet 2 Filed Aug. '7, 1947 A'ITU R N EYE 26, 1952 H. P. BERGEN HAIR CLIPPER MACHINE 3 Sheets-Sheet 3 Filed Aug. 7, 1947 INVENTOR. 5 077s Be 7e77,

gait;

Patented Aug. 26, 1952 EUNlTED STATE "s NT.own;

H -HansP.Bergen, appiieat on augusmwn,sci-awarenessf This invention relates to hair clippers and-has 'as its primary objectthe provision of compressed air driven clippers incorporating a reciprocating blade-wherein the compressed air enters a channelin the handle or casing of the'clippersand acts upon a pivo'tally'hiounted piston or lever to oscillateth'e same back and'forth inthe chamber. Afurther object of the invention is the provision-of such clippers-provided with an improved valve structure controlling the pass ageof compressed air into the chamber in which the piston operates and there out of, the valve being rotatably-mounted and so co'nstructedthat upon rotation thereof air-alternately acts upon opposite side faces of the-piston and exhaust air is driven from the opposite side ofthe chamber.

- A further object of th'e invention is theprovision of a rotary valve driven by the air motor, and continuously rotated in such mannerthat the air employed foroperating the piston and the air utilized for driving the motor may be provided simultaneously. i i

A further object of :the invention is the provision of a device of this character comprising an improvement upon the sheep clippers shown and disclosed in my copendingv 1 application entitled Sheep Clippers, Serial Number 679,741, filed June-2'7, 19%, nowabandoned;

Still other objects reside in the combination of elements, arrangement of parts, and-features of construction, all as will be-more fully. pointed out hereinafter and disclosed in the accompanying drawings wherein there is shown a preferred embodiment of this inventive concept.

In the drawings:

. Figure 1 is a top plan view of one form of hair clipper -embodying features of the instant invention.

'. Figure 2is a side elevational view of the construction shown in Figure 1.

Figure 3 is a sectional View taken substantially along the line-3--3 of the construction shown in Figure 2. I Figure 4 is a sectional view. taken substantially along the line i-4 of Figure 1 as viewed in the direction indicated by the arrows.

' Figure 5 is a sectional view taken substantially along the line 5-5 of Fi ure 3 as viewed in the direction indicated by the arrows.

Figure 6 is a sectional 'view taken substantially along the line 6 6 fof Figure 4 as viewed in the direction indicated by the arrows. Figure 7 is a sectionalview taken substantially along the'line 'l'| of Figure 4'as viewed in the direction indicated by the arrows, the rotor of the device being removed.

. 1 Claim. (01. 121-187) Figure 8 is a sectional view taken substantially along the line 8-8 of Figure 4 as viewed in the direction indicated by the arrows, the rotor being removed.

Figure 9 is a sectional view taken substantially along the line 9--9 of Figure 4 asviewed in the direction indicated by the arrows. I

Figure 10 is a top plan'view of a-construc tional detail.

Figure 11 is a sectional view taken substantially along theline I l l l of Figure 10 as viewed in the direction indicated by the arrows.

:Similar reference characters refer to similar parts'throughout the several views of the draw.-

mg. I p v Referring now to the drawings in detail, the instant invention includes a casing orcover '20, provided with a removable top plate 2| adapted to be secured thereto as by screws 22 or the like. The casing 26 includes an offset at the lower portion at one extremity, to which is secureda fixed blade member 23 having a plurality of teeth 24 thereon. The cutting face of the blade 23"is adjacent an open end of the casing It; which is adapted to have positioned therein a movable cutting blade 25 provided with a pluralityof teeth 25 adapted, upon reciprocation of the blade 25 in a manner to be more fullydescribed here inafter to coactwith the teeth 24 to effect the cutting action. Q

The fixed blade 25 is provided as best shown in Figure 3 with a slot 21, within which is positioned a movable lever 28, the lever being provided with a pair of inserts 29 and 30 respectively provided at their upper and lower faces with sockets for the accommodation of ball members 31 and 32 respectively. Ball member 3! is resiliently mounted ason a spring 33fsecured in a socket 34 in the upper portion of'cover 2 I, afiording a relatively resilient connection between the upper portion of member 28 and the top of the casing. Conversely ball member 32 comprises the extremity of a stub 35 fixedly secured as by a locknut 36 in an aperture centrally positioned in the base of the casing. 'The rear extremity of member 28 terminate in a ball 49, adapted to engage in longitudinally extending socket 4|, positioned in therounded extremity 42 of a piston generally indicated at 43 and to be-described more fully hereinafter.

Rounded extremity 42 is mounted on a pivot 45, extending entirely through the casing, and secured inposition as by a nut 46 engaging a threaded extremity thereof. The piston is carried by a'sealing insert 50, extending transversely across the interior of the casing, and defining the outer limit of an interiorly positioned air chamber the purpose of which will be more fully pointed out hereinafter. It may here be noted that a sealing gasket may be interposed between casing and its associated cover 2I in order to maintain the chamber 5| in substantially air tight relation.

Referring now to the piston 43 in detail, it will be seen that the construction comprises an arcuate plate-like member extending from the cylindrical portion 42 outwardly substantially the full extent of the air chamber 5|. The platelike portion is provided witha plurality of channels in its ends and top and bottom, within which are positioned as best shown in Figure 4 lead springs 56 which are adapted to bias sealing strips 51 outwardly into contact. with the walls of the air chamber. An additional sealing member 58 of arcuate configuration embraces. the connection of the plate like portion with the cylindrical portion, thus forming. an effective seal for the slot extending into the supporting member 50.

It will now be seen that the arrangement is such that when air is. admitted to the chamber 51 on' one side of the piston 43 the same will be moved to the opposite side. oi the chamber, whereupon admission of. air to the opposite. side of the chamber will cause a reverse swing exhausting air from the first; mentioned side.

Means. are provided for effecting, such alternate admission of. air and include an arcuate bafiie 5|! adapted to abut one end of the piston, and provided on opposite-sides thereof. with air passages BI and 62. It isto be noted that the rear portion oi oasing 20. opposite the blade portion terminates in a relatively cylindrical part. 65, to. which is adapted to be secured as by screws 66, an end cap 61, which includesv a threaded flange. 68

adapted to be engaged. by a cap. like member 69 surrounding and having secured. thereto. an ex.- haust tube III. Concentric with the exhaust. tube 10 and interiorly positioned there within is an air inlet. II, which engages a. nipple I2, and is threaded into a bore I3, in an interior solid portion- I4 of end cap 61.. The. nipple. I3 is hollow and communicates. with an air inlet passage 18 provided at its extremity with. a bleed. valve I9.

Journaled between the inner extremity of the portion 60 and the portion I4 isa rotor generally indicated at 80,. revolvable in a cylindrical opening BI, and provided on its external periphery with cups 82, adapted for rotation of the device. As best. shown in Figure 9 the rotor includes two semi-circular slotted grooves 83 and 84, extending entirely therethrough, but being concentric and not. aligned. The respective journals. are indicated at 8 1- and 88-.

The. rotary valve: 80 is adapted to berotated by the admission of air from inlet It to. apassage 98 having an inlet 9|; in. the base of enlarged portion of casing 29, the. air after having served to drive the rotor passing through an exit 92, and thence through a passage 93 into the interior of cup 69 and thence outwardly through outlet tube 10-. It will thus be seen. that the rotor is continuously rotated while air is admitted through the inlet nipple. I3.

The inner face. 01" member 60 as best shown in Figure '7 is provided with two elongated slots, 95 and 95 respectively, in such manner and so aligned that the slots 95 and 96 communicate alternately with the channels 83 and 84 during the rotation of the rotary valve 80 and the 4 channels 83 and 84 serve as both inlet and outlet in a manner to be described more fully hereinafter. The slot 95 is in communication with the passageway 6 I, while the front 96 is in communication with the passageway 62 leading into the air chamber SI.

On the opposite side of the rotor the inner face of the member I4 is provided with two inlet openings 91 and 98 and in alignment therewith and positioned on a largerdiameterare two outlet openings 99 and I08. The apertures 81 and 98 are both in communication with and comprise the ends of inlets IDI and Ill! respectively which are in, communication with the air inlet at the extremity of the nipple 13. The outlets 99 and IN are correspondingly aligned with and comprise the mouths. of passageways I03 and I04 which extend through the member I4 into communicatlon with the interior of the cap 89, from which air may pass to the outlet tube III.

From the ioregoing the operation of. the device should now be readily understandable. As. air is admitted into. the passage. ll, the turbine. rotaryvalve is. rotated by admission or air through the inlet M to the cups 82. Such rotation selectively opens one oi the inlets 98 or 91. in accordance: with the passage of a groove 83 or 84 thereby. Simultaneously the opposite. groove opens outlet 9.9 or IIIfl-.. Since. the channels are at all times in communication through the elongated slots and 96.- with thepassageways I and 62 it will. be seen: that when passageway 60 serves as; an air inlet admitting air to one side of piston 43 air simultaneously will be emitted through passage 62,, channel 83,. and outlet possageway I04. Obviously the; continued rotation of turbine valve will reverse: the action, thus efiectively reciprocating, the: piston 4 3, which in the manner previously described will efleot reciprocation of the movable blade. 25, thus cflecting the shearing action with the fixed; blade 2!.

From the foregoing it will now be. seen that there is herein provided an improved hair clipper, which. accomplishes all. the: objects of this invention, and others, including many advantages of great practical utility and commercial importance.

As many embodiments may be made of this inventive concept, andas many modifications may be made in the embodiment hereinbeiore shown and described, it is to be understood that all matter herein is to be interpreted merely as illustrative and not in a limitin sense.

I claim:

In a fluid motor for a hair clipper having a cylindrical casinghaving a cylindrical opening therein, an exhaust tube connected to said casing, an air inlet tube concentric with the exhaust tube and interiorly thereof, an air inlet passage communicating with said air. inlet tube, a rotor rotatably mounted in the casing and positioned in the cylindrical opening, relatively spaced cups on the periphery of said. rotor, a first. semi-circular groove. extending through said. rotor, a. second semi-circular groove 01' greater radius than said first semi-circular groove. in said rotor with the ends of the first and second grooves extending toward the center of the rotor in. concentric relation to each other with the ends of the first groove inwardly ofthe ends of. the second groove, a passage communicatin with said air inlet passage and said cylindrical. opening so. that airentering said passage will impinge against the cups on the. periphery oi. the rotor, a second passage communicating with thesaid exhausttube whereby the air after it has served to drive the rotor will pass outwardly of said exhaust tube, a pair of elongated slots in said casing aligned with said semi-circular grooves so that said grooves and said slots are in alternate communication with each other, air passages extending from and in communication with each of said slots, a pair of inlet openings in said casing, a pair of outlet openings in said casing radially of and in alignment with said inlet openings, and said inlet openings are in communication with said air inlet tube and said outlet openings are in communication with said air exhaust tube and a piston adapted to be reciprocated by the escape of air through said grooves.

HANS P. BERGEN.

6 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 153,846 Reynolds et a1 Aug. 4, 1874 154,603 Hamilton Sept. 1, 1874 159,547 Harlow Feb. 9, 1875 539,066 Mackenzie May 14, 1895 547,718 Fletcher Oct. 8, 1895 549,585 Prolhac Nov. 12, 1895 865,949 Schafi et a1 Sept. 10, 1907 1,096,239 Haesler May 12, 1914 1,841,634 Rolstad Jan. 19, 1932 2,080,451 Wilcox May 18, 1937 2,081,510 Smart May 25, 1937 

